Core i9-13900K
Not rated yet
US launch / reference: $589
Third-party reference ↗Core i9-13900K vs Ryzen 9 9900X
An overall editorial verdict is not available for this pair yet. Your priorities and current prices can change the better choice.
Ryzen 9 9900X
92/100 editorial
US launch / reference: $499
Third-party reference ↗Start with the tradeoffs
Consider Core i9-13900K for
- 24 (8P + 16E) CPU cores and 32 threads
- Listed L3 cache: 36 MB
Tradeoff: System and motherboard support must match the LGA 1700 platform.
Consider Ryzen 9 9900X for
- 12 cores at 5.6 GHz boost
- 120 W TDP — cooler than 9950X
- AM5 platform longevity
Tradeoff: 9950X edges it on multi-thread
Scores and judgments are editorial. Specdex does not run an in-house benchmark lab. Manufacturer claims and independent measurements may use different test conditions.
Specifications side by side
Arrows indicate a higher capacity, higher power rating, or lower weight/time for comparable simple quantities. They do not establish overall product quality. Unknown values remain unavailable.
| Specification | Core i9-13900K | Ryzen 9 9900X |
|---|---|---|
| Cores | 24 (8P + 16E) | 12 |
| Threads | 32 | 24 |
| Base clock | 3.0 GHz (P) / 2.0 GHz (E) | 4.4 GHz |
| Boost clock | 5.8 GHz | 5.6 GHz |
| L3 cache | 36 MB | 64 MB |
| TDP | 125 W base / 253 W max | 120 W |
| Socket | LGA 1700 | AM5 |
| Class | Desktop | Not documented |
| Process | Not documented | TSMC N4X |
| iGPU | Not documented | Radeon Graphics (RDNA 2, 2 CUs) |
| Memory | Not documented | DDR5-5600 dual-channel |
Core i9-13900K
Prices & availability
US launch / reference: $589. This is not a current retailer offer.
Checking current offers…
Price history
History appears when an approved retailer provides observations.
Prices apply to the listed configuration and condition. Tax and shipping are not included unless the retailer states otherwise.
Ryzen 9 9900X
Prices & availability
US launch / reference: $499. This is not a current retailer offer.
Checking current offers…
Price history
History appears when an approved retailer provides observations.
Prices apply to the listed configuration and condition. Tax and shipping are not included unless the retailer states otherwise.